摘要
针对深部层位、新工区等无井地区的构造圈闭,使用虚拟井技术进行流体检测可以初步降低勘探的风险.本文针对渤中3-2油田的中古生代潜山储层,以多道地震测线为基础,通过遗传算法构建虚拟井曲线,进而做叠后波阻抗反演,结合频谱成像技术和频率衰减属性,对目标储层做流体预测.反演结果表明:即使在无井的条件下,潜山目标层的流体也可以得到很好的反映,虚拟井叠后波阻抗反演相对稳定,可以为无井地区油气勘探工作提供参考.
For the structural traps in deep strata and the new area without wells,using the Pseudo-well technique to predict the oil and gas can reduce the risk of exploration preliminarily.The paper focused on the Paleozoic and Mesozoic buried hill reservoir in Bozhong 3-2 oilfield and we used the genetic algorithm to construct the pseudo well log based onthe multi-channel seismic data,then we did post-stack seismic impedance inversion.Spectral imaging and frequency attenuation gradient attributes were used to constraint the inversion.Thefinal results showed that even without wells,the fluid in buried hill strata could also be well detected.The pseudo-well post-stack impedance inversion is relatively stable and can provide a way for the oil and gas exploration in no-well areas.
作者
潘军
张艳
栾锡武
张志让
刘欣欣
陈珊珊
PAN Jun;ZHANG Yan;LUAN Xi-wu;ZHANG Zhi-rang;LIU Xin-xin;CHEN Shan-shan(Qingdao Institute of Marine Geology,Ministry of Natural Resources,Shandong Qingdao 266071,China;Marine Petroleum Resource and Environment Geology,Ministry of Natural Resources,Shandong Qingdao 266071,China;Function Laboratory for Marine Mineral Resource Geology and Exploration,Qingdao National Laboratory for Marine Science and Technology,Shandong Qingdao 266071,China;Land Ocean(Xi'an)Energy Services Company Limited,Xi'an 710000,China)
出处
《地球物理学进展》
CSCD
北大核心
2018年第6期2563-2567,共5页
Progress in Geophysics
基金
国家自然科学基金(41406071
41706069)
公益性行业科研专项(201511037)联合资助
关键词
虚拟井
波阻抗反演
调谐频率
频率衰减属性
pseudo-well
seismic impedance inversion
tuning frequency
frequency attenuation gradient attribute
